the mordant in the gram stain procedure is
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

1. In the Gram Stain procedure, which component acts as the mordant?

Correct answer: C

Rationale: In the Gram Stain procedure, the mordant is Gram's Iodine. The purpose of the mordant is to form a complex with the crystal violet, enhancing its ability to bind to the cell wall. Crystal violet is actually the primary stain used in the Gram Stain procedure to initially color all cells. Methyl alcohol is the decolorizer that removes the crystal violet from certain cell types. Safranin is the counterstain used to stain those cells that did not retain the crystal violet stain after the decolorization step.

2. A 30-year-old woman has recently moved to the United States with her husband. They are living with the woman's sister until they can get a home of their own. When company arrives to visit the woman's sister, the woman feels suddenly shy and retreats to the back bedroom to hide until the company leaves. She explains that her reaction to guests is simply because she does not know how to speak "perfect English."? What is this woman likely experiencing?

Correct answer: A

Rationale: The woman in the scenario is likely experiencing culture shock. Culture shock is a term used to describe the state of disorientation or inability to respond to the behavior of a different cultural group due to sudden strangeness, unfamiliarity, and incompatibility with the individual's perceptions and expectations. In this case, the woman's feelings of shyness and retreating due to not feeling confident in speaking 'perfect English' align with symptoms of culture shock. The other choices are incorrect: Cultural taboos refer to behaviors or actions that are prohibited within a particular culture; cultural unfamiliarity suggests a lack of knowledge about a specific culture, which is not the case here; and culture disorientation is not a commonly used term in cultural psychology, making it an incorrect option.

3. A healthcare professional is preparing to administer an enteral feeding through a gastrostomy tube. Before administering the feeding, the healthcare professional aspirates some stomach contents and checks the pH. The result is 3.9. What is the next action of the healthcare professional?

Correct answer: A

Rationale: When the pH of the aspirated stomach contents is 4 or less, it indicates that the gastrostomy tube is in the stomach, confirming correct placement. A pH of 3.9 falls within this range, so the healthcare professional can proceed with administering the enteral feeding. There is no need to adjust the tube placement, flush with water, or contact the physician in this situation as the tube is appropriately positioned for feeding.

4. During a work shift, how can a nurse best demonstrate the dynamic nature of the nursing process?

Correct answer: D

Rationale: The nursing process is dynamic as it involves adapting to the changing health status of the client. Rapidly resetting priorities for client care based on changes in the client's condition exemplifies this dynamic nature by responding promptly to evolving circumstances. Collaborating with the client to establish healthcare goals (Option A), reviewing the client's medical record history (Option B), and explaining the purpose of administered medications to the client (Option C) are all essential nursing actions but do not directly showcase the dynamic nature of the nursing process.

5. When a patient is standing in anatomical position, where are their feet?

Correct answer: B

Rationale: When a person is standing in anatomical position, their feet are side by side, and they are facing forward with the toes pointing out to the sides to open the hips. This position allows for proper alignment of the body for anatomical reference. Choice A is incorrect because the feet should not be spread open, but rather side by side. Choice C is incorrect as it does not mention the correct positioning of the feet. Choice D is incorrect as the feet should not be pointed inward, but rather facing out to the sides to open the hips.

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